Christopher Knafelc, who rescued a man who had fallen off the platform in a north Philadelphia subway station, is photographed during an interview in a transit police office in Philadelphia. Knafelc, 32, jumped down onto the tracks to help the man, knowing that a train would be arriving in a few minutes. Train traffic was halted and the man was taken to a hospital and listed in stable condition.

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SEOUL, South Korea (AP) — North Korea warned Seoul on Saturday that the Korean Peninsula had entered “a state of war” and threatened to shut down a border factory complex that’s the last major symbol of inter-Korean cooperation.
Analysts say a full-scale conflict is extremely unlikely, noting that the Korean Peninsula has remained in a technical state of war for 60 years. But the North’s continued threats toward Seoul and Washington, including a vow to launch a nuclear strike, have raised worries that a misjudgment between the sides could lead to a clash.